1322061136457 has 2 divisors, whose sum is σ = 1322061136458. Its totient is φ = 1322061136456.

The previous prime is 1322061136453. The next prime is 1322061136469. The reversal of 1322061136457 is 7546311602231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 683869457296 + 638191679161 = 826964^2 + 798869^2 .

It is an emirp because it is prime and its reverse (7546311602231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1322061136457 - 2² = 1322061136453 is a prime.

It is not a weakly prime, because it can be changed into another prime (1322061136453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661030568228 + 661030568229.

It is an arithmetic number, because the mean of its divisors is an integer number (661030568229).

Almost surely, 2^{1322061136457} is an apocalyptic number.

It is an amenable number.

1322061136457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322061136457 is an equidigital number, since it uses as much as digits as its factorization.

1322061136457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 41.

Adding to 1322061136457 its reverse (7546311602231), we get a palindrome (8868372738688).

The spelling of 1322061136457 in words is "one trillion, three hundred twenty-two billion, sixty-one million, one hundred thirty-six thousand, four hundred fifty-seven".